[metmom]

Why did Our Lord bring up "water", Himself was baptized in water, and as we see in the Acts, the Apostolic Church baptized in water?

Baptized IN water, not baptized WITH water

So why don't Catholics follow Jesus' example and get dunked as an adult?

Tell me. Did Jesus need to get baptized to get to heaven?

[annalex]

get dunked as an adult?

When the facilities allow for it full immersion is preferable. Interesting how Protestant heretics at the same time argue that baptism does not save, then get persnickety over the method.

At the same time, this episode suggests that the water was brought in, i.e was not a full immersion baptism:

[47]...Then Peter answered: Can any man forbid water, that these should not be baptized, who have received the Holy Ghost, as well as we? [48] And he commanded them to be baptized in the name of the Lord Jesus Christ. (Acts 10)

Observe that the house was "by the sea side", yet the water that was used was of the kind that could be given or forbidden by the master of the house, i.e. household water in some vessel.